Kinesis Contoured Keyboard is the best keyboard ever. I've been using one for about five years now, and have finally come across others who use them. If it weren't for the Kinesis, I'd have had to stop programming years ago due to chronic tendonitis. These things rock.
The Advantage USB contoured keyboard sets a new standard for ergonomic keyboards. The Advantage line incorporates the same advanced ergonomic design as our other contoured keyboards and delivers additional features not found on other USB keyboards.